Improvement in jack for threshing-machim es



J. SHERCK. JACK FOR THRBSHING MACHINES.

No. 90.315. Patented May 18, 1869.

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Letters Patent No.QO,315, dated May 18, 1869.

MROVBLIENT IN TACK FOR THRESHIIfG-MACBINES.

The Schedule referred to in these Letters Patent and making part of thelame.

To all whom it may concern Be it known that I, ISAAC Season, ofFlatrock, in

the county of Seneca, and State of Ohio, have invented a new and usefulJack for Threshing-Machines; and 1 do hereby declare that the followingis a full, clear, and description thereof; reference being had to theaccompanying drawings, making a part of this specification, and to theletters of reference marked thereon.

In threshing grain in the field, great inconvenience is oftenexperienced, in consequence of the changing of the wind during the day,before the operation of threshing is completed.

In preparing for the operations of the day, it is customary to place thethreshing-machine in such a posi tion, that whatever wind may beblowing, will have a tendency to convey the chaff and waste in a direc-The object of my invention is to obviate the difiicirity abovedescribed, by introducing between the threshing-machine, and the powerfrom which it receives its motion, an intermediate device, which willgreatly lessen the inconvenience referred to, by diminishing therequired amount of change of position, and lessening the labor of makingsuch change.

The nature of my invention consists in the employment of an auxiliarymachine, receiving motion from a primary power, as'a means fortransmitting motion to the threshing and other machinery, arranged indifferent positions, with respect to the primary power and auxiliarymachine, without changing the relative position of the auxiliary machinewith respect to the primary power.

To enable those skilled in the art to which myinvention ap'pertains, tomake and use the same, I will proceed do describe one form ofconstruction by which it may be carried into successful operation.

In the drawings- Figure 1 is a plan or top view of my invention.

Figure 2 is an end view, showing one of the sills partly broken away.

A A represent two sills,-upon which rests a framework, constructed ofrails a a, and ties, or girts b l).

B is a horizontal shaft, journalled in the ties b b.

On the outer end of said shaft B, is a coupling, 0, by

which it may be connected with a steam-engine, horsepower machine, orany other primary power.

On the inner end of said shaft B, is a bevel-wheel, O, which meshes intoa pinion, D, on the lower end of a vertical shaft, E.

Resting upon and secured to the rails a a, is abletallic frame-work, F,formed of four semicircular arches,

connected at their bases, as shown at f.

01', the frame-work F may be formed of upright posts and horizontalrails.

, Attached to the under sides of two of the semipircular arches, orhorizontal rails, is a bridge, d, in which the upper end of the verticalshaft E is journalled, the lower end ofsaid shaft being journalled in abridge, (2', attached to the under sides of the rails a a. I

On the upper end of the vertical shaft E, is a bevelwheel, G, whichmeshes into a pinion, H, on a horizontal shaft, I.

Resting upon and securedto the semicircular arches, or horizontal rails,forming the frame-work F, is an annular plate, or platform, K, whichforms a bearing-surface for the adjustable frame L, which may be either'oblong or square, in the end-pieces of which the shaft I'is journalled,as shown at l I.

On one end of the horizontal shaft 1, is a pulley, M, and on the otherend is a coupling, N.

At the corners of the adjustable frame L, are holes, through which passbolts 0, on the lowerends of which are hooks h, and on the upperends arescrew-threads, which engage with nuts a,

By means of these bolts 0, the flame L may be held in differentpositions on the plate, or platform K, by adjusting the frame to thedesired position, and then screwing down the .nuts n, the hooks hgrasping the under side of the plate K, and the nuts and screwthreadsholding them securely.

The operation is as follows:

The jack is secured in position near the horse-power,

or other primary-machine, with which it is connected by means of thecoupling 0. Y

The threshing-machine is then placed in the desired position, andconnected with pulley M, by a belt, or the coupling N, by gearing, asmay be preferred, the frame L being adjusted, as required, and securedby screwing down the nuts 11.. When it becomes necessary to change theposition of the threshing-machine, the frame L is adjusted tocorrespond, by means of the bolts 0 and nuts n, as herein beforedescribed.

Having thus described my invention,

What I claim as new, and desire to secure by Letters Patent, is- I 1.The employment 'of an auxiliary, or intermediate device, receivingmotion from a primary power, as a means for transmitting motion tothreshing, or other machinery, arranged in difierent positions, withre-.

spect to the primary power and auxiliary machine, substantially as shownand described.

p 2. The adjustable frame L, shaft I, pulley M, and coupling N, arrangedand operating substantially as shown and described.

3. The combination of the adjustable frame L and annglair platform K,substantially as shown and descri e 4. The bevel-wheel O, pinion D,bevel-wheel and pinion H, in combination with the frame L andanuu larplate K, wh'en arranged and operating substantially as shown anddescribed.

ISAAC SHEROK.

Witnesses:

G. A. 0. Stairs, E. R. Baown.

